TY  - JOUR
AU  - Rüdiger, A
AU  - Szot, K.
AU  - Waser, R.
AU  - Reichenberg, B.
TI  - Sample-tip interaction of piezoresponse force microscopy in ferroelectric nanostructures
JO  - IEEE transactions on ultrasonics, ferroelectrics, and frequency control
VL  - 53
SN  - 0885-3010
CY  - New York, NY
PB  - IEEE
M1  - PreJuSER-57079
SP  - 2253 - 2260
PY  - 2006
N1  - Record converted from VDB: 12.11.2012
AB  - We report on qualitative and quantitative implications of the sample-tip interaction in piezoresponse force microscopy. Our finite-element analysis of adsorbate effects, sample heterogeneities, and tip asymmetries is in agreement with experimental observation of ferroelectric nanostructures. Qualitative discrepancies arise from locally asymmetric tip-sample interaction. Any quantitative determination of field-related material parameters as required for the verification of semiempirical models of the ferroelectric limit typically relies on an overestimated field across the sample. Our findings indicate that adsorbates reduce the actual field across the nanograin by roughly one order of magnitude.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000242390900004
DO  - DOI:10.1109/TUFFC.2006.170
UR  - https://juser.fz-juelich.de/record/57079
ER  -